Roll of paper for high speed pasters



D. G. BERNARD ROLL oE PAPER EOE HIGH SPEED PAsTEEs March 7, 1939.

Filed April 22,'1952 JIME/ d lPatented Mar. 7, 1939 RJOLL F PAPER FOR HIGH SPEED PASTEBS David G. Bernard, Chicago, Ill., assignor, by

mesne assignments, to Donald lVI. Carter, Chicago, Ill.

Application April 22, i932, serial No. oasis Claims.

This invention relates to the process of connecting a new roll of paper with an expiring roll which is being delivered to the press or other machine when the expiring roll is running at high 6 speed, that is for making a high speed paster between the new roll and the expiring roll, and is .f

particularly directed to the preparation of the new roll to insure proper connection between the web of this new roll and the web of the expiring l0 roll.

In making this high speed paster, the press or other machine to which the paper is being delivered is run at high speed, and it is desired to be able-to change the delivery of the paper from the expiring roll to the new roll without materially reducing the speed. In'order to do this the new roll `l must be brought up to the desired-speed, which is approximately the speed of the web being delivered, and the loose end of the web of the new roll must be in sealed condition while it is being 1 brought up to speed so it will be in proper condition to be connected with the web of the expiring roll. Furthermore, the leading edge of the web of the new roll must lift away clearly fromv the roll when the pasting contact is established.

Adhesive must be used to connect the webs of in such manner as to allow lateral clearance for the belts by means of which the roll is brought up to speed, this lateral clearance being desirablel to permit proper margining.

Thel present invention has as its object to secure this result. Theginvention has as a further object to provide means for reinforcing the leading edge of the new roll that is to be connected to the expiring roll so as to prevent a tear yfrom developing due to the stress induced in lifting the ,leading edgeaway from the roll at the start of the paster. The invention has as a further object to provide means so that the opera.- tors can easily recognize and remove the copy of the paper containing the pasted end of the new roll. The invention has further objects which are more particularly pointed out in the'accompanying description.

Referring now to the drawing, I have shown one construction embodying the invention.

Fig. 1 ls a view showing the position of the expiring roll and the new roll at the time the paster is being made;

Fig. 2 is a view showing the leading edge of the web of the new roll after it has been prepared for the paster; Fig. 3 is a view of the reinforcing strip;

Fig. 4 is a view of the holding tabs;

Fig. 5 is an enlarged cross sectional view taken on line 5-5 of FigfZ, through the holding Itabs, reinlorcing strip, and the leading edge of the new vro Like numerals refer to like parts throughout the several figures.

In making high speed pasters, the rolls of paper are mounted upon a roll support so that they may be successively .brought into pasting position. Any suitable roll supporting device may be used,v

and I have illustrated one form of this device, consisting of a reel having a shaft i which is rotated in any desired manner. This shaft has arms 2 between which the rolls of paper are supported. A plurality of spaced belts 8 are in position to contact with the periphery of the roll of paper while the paper is being delivered to the press. When the roll from which the paper is fed is about exhausted, and which I have here designated the expiring roll, the roll supporting device is moved so as to move this expiring roll 4 out of contact with the belts. The web 5 of this expiring roll passes over a pressure member 6 on its way to the press. The new roll of paper 1 is prepared for the high speed paster as follows:

'I'he leading edge 8 of this roll is reinforced in some proper manner, and as herein shown it is reinforced by the reinforcing strip 9 which is ,at-V

tached to this leading edge 8. y This strip maybe placed on either side of the leading edge 8.but I prefer to place it on the outside thereof. This is placed'on theleadlng edge in any desired manner, preferably by means of adhesive, andthe yfree edge of the reinforcing strip is preferably opposed tothe leading edge 8. f y A series of holding tabs i0 areattached to the leading edge 8 in any desired manner, as by means of adhesive. These tabs are weakened opposite 'the leading edge 8 in any desired manner, as by perforations. Any number of these perforations may be used; butv one series of these perforations l I should preferably be at or in the same plane as the outermost edge 8a of the leading edge. The holding tabs should have a portion Illa which projects beyond the leading edge 8, andthe portion IUa is connected to the periphery of the new roll in any desiredmanner, preferably by adhesive. The holding tabs i0 may be attached to the; outer or inner face of the leading edgeof the new roll, but I prefer to attach it to the outer face.

Some suitable adhesive l2 is placedv on the outer face -of .the leading edge 8. This adhesive is not continuous but is located so it will be between the belts l3, suitable 'spaces for the belts being free from the adhesive. These spaces should also be wide enough to permit the longitudinal movement of the roll in margining without bringing any adhesive in `contact with the belts. This adhesive is also preferably arranged so that it does not come out to the end of the leading edge so that no adhesive will be forced beyond the leading edge when the paster is made. The additional reinforcing device, which, it will be noted, is at right angles to the longitudinal fibers of the paper, seals the roll strongly so that it will not open under the high speed which the roll must be given before the high speed paster is made. Furthermore, the additional reinforcing material produces a thicker leading edge of the paper and this causes a tighter squeeze between the edge of the new roll and the web of the expiring roll when they are pressed together, and this makes a surer and more certain splicing contact. As indicated in Fig. 2 the tabs I0 are arranged in pairs spaced apart so as to indicate the places the adhesive I2 is to be applied so as not to come into contact with the belts 3. This makes it certain that the adhesive will always be properly placed and eliminates danger of the failure of the paster due to improper placing of the adhesive. It also makes it unnecessary to have a skilled workman to place the adhesive. The sides I3 of the web of the new roll leading up to the leading edge are preferably beveled, as shown, although this bevel may be omitted if desired. Some comparatively weak adhesive, such as cup grease I3a, may be placed to form a light connection between the beveled portions and the succeeding wrap on the roll.

Indicating tabs are preferably applied to the new roll, to indicate to the operator at the folder, the papers containing pasted ends of the two rolls, and these indicating tabs may be colored if desired to more readily attract the attention of the operator. I have shown the indicating tabs I 4 and i5, one being connected to the web near the leading edge and the other attached to the next layer of paper on the roll.

When the new roll is prepared for the high speed paster, as herein indicated, and the roll from which the paper is being delivered to the press is about exhausted, the roll supporting device is moved so as. to move the expiring roll 4 away from the belts'3 and the new roll 'l into contact therewith. These belts are driven at proper speed and when the new roll is brought into contact therewith the belts engage the new roll at the points where there is no adhesive and rotate the new roll so as to bring it up to the desired speed. The holding tabs hold the leading edge ofthe new roll from being displaced during this rotation of the new roll.

When the new roll has attained the desired speed the roll supporting device is moved further so as to press the new roll against the web 5 of the expiring roll at the point where said web passes around the pressure device 6. This vcauses the adhesive on the leading edge 8 of the new roll to be pressed against the web 5 of the expiring roll with sufficient pressure to cause 'it to adhere thereto. This leading edge of the new roll theny adheres to the web of the'expiring roll and with a shearing and lifting action-breaks the holding tabs at the weakened portions thereof so that the web of the new roll passes along with the' web of the expiring'V roll and is delivered to the press or other machines in connection with which the device is used. The delivery of the paper is then changed from the expiring roll to v the new roll.

There is considerable stress on the leading edge of the new roll when the 4paster is to be made. and the reinforcing strip prevents the stress from tearing the leading edge of the new roll. In the application of the adhesive I2 to the required areas on the reinforcing strip and leading edge and tabs, care must be used to insure a thin and even coating, so placed that none of it will be forced beyond the leading edge so as to come into contact with any parts oi the press. The indicating tabs I4 and I 5 indicate to the party at the folder the portion where the paster is made, and these papers can be removed.

It will be seen that by means of this process the high speed paster can be easily, quickly and effectively made at any desired speed without any interference, and that the new roll may be connected to the web of the expiring roll in a completely eifective and satisfactory manner. It will be noted that the leading edge' of the new l roll is releasably connected with the periphery of the roll beyond this leading edge. I have described the process in the claims with the steps in a certain order, but it is of course evident that -the steps may be taken in different order from that set forth in the claims.

I claim.:

l.`A roll of paper arranged for making a high speed paster, the web of which has a substantially straight end portion substantially parallel with the longitudinal axis of the roll, separate substantially straight reinforcing material attached to the substantially straight portion of the end of said web, and tabs connected with the end of the web and projecting beyond the end of the web, the tabs being attached to the pe- A riphery of the rollbeyond the end of the web, said tabs being weakened intermediate their ends, said reinforcing material forming a shearing device which shears the tabs when the paster is being made.

2. A roll of paper arranged for making a high speed paster, the web of which has a substantially straight end portionv substantially parallel with the longitudinal axis of -the roll, separate substantially straight reinforcing material -attached to the substantially straight portion of the end of said web, and tabs connected with the end of the web and projecting beyond the end of the web. the tabs being attached to the periphery of the roll beyond the end of the web, said tabs being weakened intermediate their ends, the weakened portions of the tabsbeing oppostie the end of the web.

3. A roll of paper arranged for making a high speed paster, having the end of its web substantially parallel with the longitudinal axis of the roll and reinforced by a separate reinforcing part attached to the outer face of the leading edge, and tabs connected with the end of the reinforced web and projecting beyond the end of the web, the tabs being attached to the periphery of the roll beyond the end of the web, said tabs being weakened intermediate their ends.

4. A roll of paper arranged for making a high speed paster, comprising a web having a substantially straight edge for a considerable distance along its middle portion, a separate reinforcing stiilening device connected with the said substantially straight portion of the web at the end thereof. tabs connected with said reinforcing stiifening device and projecting beyond the substantially straight edge oi' said web, said pro- Jecting ends of said tabs being connected with the periphery of the roll and being provided with a plurality of perforations adjacent said'reinforcing stienlng device, the perforated portions of said tabs being separated from the periphery of the roll by a space.

5. Aroll of paper arranged for making a high speed paster, comprising a web having a substantially straight leading edge, substantially parallel to the longitudinal axis of the roll, stiilening means added to said substantially straight edge, tabs connected with said leading edge and projecting beyond said leading edge, the parts projecting beyond the leading edge being attached to the periphery of the roll, and adhesive material on portions of said substantially straight leading edge, the adhesive material being conned solely to said' substantially straight leadingedge.

DAVID G. BERNARD. 

